* {
    margin: 0;
    padding: 0;
    font-size: 1.8rem;
    font-family: "华文行楷";
    color: #9F79EE;
    transition: all .5s ease-in-out;
}

body {
    padding: 2rem;
    background-color: aquamarine;
    position: relative;
}

span {
    font-size: 1rem;
    color: #f3778d;
    position: absolute;
    top: 1rem;
    left: 1rem;
    animation: movingLight 1s linear infinite alternate;
}

@keyframes movingLight {
    25% {
        text-shadow: 5px 0 10px #ff0;
    }
    50% {
        text-shadow: 0 5px 10px #00f;
    }
    75% {
        text-shadow: -5px 0 10px #0f0;
    }
    100% {
        text-shadow: 0 -5px 10px #f00;
    }
}

h1 {
    left: 40%;
    top: 2rem;
    font-size: 3rem;
    text-align: center;
    font-family: "华文楷体";
    cursor: pointer;
}

h1:hover {
    transform: scale(1.1);
    text-shadow: 10px 10px 10px #ff0;
}

h2 {
    text-align: center;
    color: #f00;
    margin-top: 1rem;
    text-shadow: 10px 10px 10px #ff0;
}

button {
    margin-top: 1rem;
    cursor: pointer;
    font-size: 2rem;
    padding: 1rem 2rem;
    border-radius: 5rem;
    background-color: #FFFF00;
    border-color: #9F79EE;
    cursor: pointer;
}

button:hover {
    color: #FFFF00;
    background: #9F79EE;
    border-color: #ffff00;
}

#container {
    width: 550px;
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    margin: 10rem auto auto;
}

p {
    font-size: 3rem;
    font-family: "华文彩云";
    width: 80px;
    height: 80px;
    padding: 10px;
    text-align: center;
    line-height: 80px;
    position: absolute;
    color: slateblue;
    background-color: pink;
    box-shadow: 0 0 10px 10px pink;
    border-radius: 40px;
    opacity: .7;
    cursor: pointer;
    font-weight: 800;
}